Can you block a particular website for a single user?

Yes, but there are several different approaches.  How many total users do you have?  Do you have Active Directory?  Is the user browsing from a Windows, iOS or other device?

Cheers - Bob

We have about 5000 users, and are running AD on Server 2012 R2. The OS is windows 7 Professional.

Thanks!

Are you running Web Filtering in Transparent or Standard mode?  Are you using AD-SSO authentication?  Is this user requesting to be blocked, or is someone else requiring the website block?

Cheers - Bob

hello gentle men\women, the question pertaining to the initial question was not really addressed. Is it possible to block a particular USER from a certain/specific site?? I am currently have a problem with band-breath abuse..I also am using UTM 9..

Hello Kgosi and welcome to the UTM Community!

There are several things that can be done, but we need more specifics about the problem.  What is the website?  What is the person doing to use too much bandwidth - streaming, downloading, uploading, HTTP, HTTPS, FTP, and/or ???  Is Web Filtering in Standard or Transparent mode?  Are you using AD-SSO?  Which version of 9 - 9.506?

Cheers - Bob